SYNOPSIS

DESCRIPTION

The htonl() function converts the unsigned integer hostlong from host
byte order to network byte order.
The htons() function converts the unsigned short integer hostshort from
host byte order to network byte order.
The ntohl() function converts the unsigned integer netlong from network
byte order to host byte order.
The ntohs() function converts the unsigned short integer netshort from
network byte order to host byte order.
On the i386 the host byte order is Least Significant Byte first,
whereas the network byte order, as used on the Internet, is Most
Significant Byte first.

CONFORMINGTO

POSIX.1-2001.
Some systems require the inclusion of <netinet/in.h> instead of
<arpa/inet.h>.